Drum for transporting sheets

Details Drum for transporting sheets Drum for transporting sheets

1992-08-10

1993-02-16

Eickholt, Eugene H.

Printing

Work supporting members

Grippers

271276, 271277, 271 82, 271195, B41F 130

Patent

active

051861070

ABSTRACT:
A drum for transporting sheets includes a drum base body having a plurality of sheet leading edge grippers and a sheet trailing edge holding part. A plurality of movable suction nozzles are used to smooth the sheet on the surface of the drum and the drum base body and holding part are shiftable circumferentially to stretch the smoothed sheet so that all wrinkles and other defects will be removed from the sheet.

REFERENCES:
patent: 3430946 (1969-03-01), Siebke
patent: 4024814 (1977-05-01), Becker
patent: 4127265 (1978-11-01), Wirz et al.
patent: 4357870 (1982-11-01), Rudolph et al.
patent: 4395949 (1983-08-01), Jeschke
patent: 4660825 (1987-04-01), Umezawa
patent: 4790244 (1988-12-01), Otfried et al.
patent: 5108085 (1992-04-01), Smith et al.

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